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You are correct, 260GTX has no ethanol. 260GT and 260GT+ do have ethanol, which boosts octane some. Like I mentioned it's not a deal breaker to all, but I like the stability of fuel without ethanol. I like the T4 for the Moto bikes because it has good octane and they oxidize the fuel without the use of ethanol. I'm...

A little late to the party here but... I have had vey good success with T4 in my 250f and 450f. I have also bought the VPR (leaded version of the T4, higher octane) and cut it 50/50 with 87 pump with no ethanol. Worked good also, but dealer stopped stocking it. I believe all of the Sunoco GT fuels...